EP1278930A1 - Locking device - Google Patents

Locking device

Info

Publication number
EP1278930A1
EP1278930A1 EP00944473A EP00944473A EP1278930A1 EP 1278930 A1 EP1278930 A1 EP 1278930A1 EP 00944473 A EP00944473 A EP 00944473A EP 00944473 A EP00944473 A EP 00944473A EP 1278930 A1 EP1278930 A1 EP 1278930A1
Authority
EP
European Patent Office
Prior art keywords
gate
catch
slot
driver
button
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP00944473A
Other languages
German (de)
French (fr)
Other versions
EP1278930B1 (en
Inventor
Jöran Lundh
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LUNDH, JOERAN
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP1278930A1 publication Critical patent/EP1278930A1/en
Application granted granted Critical
Publication of EP1278930B1 publication Critical patent/EP1278930B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/02—Shutters, movable grilles, or other safety closing devices, e.g. against burglary
    • E06B9/08—Roll-type closures
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/02—Shutters, movable grilles, or other safety closing devices, e.g. against burglary
    • E06B9/08—Roll-type closures
    • E06B9/11—Roller shutters
    • E06B9/13—Roller shutters with closing members of one piece, e.g. of corrugated sheet metal
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B2009/002—Safety guards or gates
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
    • E06B9/52—Devices affording protection against insects, e.g. fly screens; Mesh windows for other purposes
    • E06B9/54—Roller fly screens
    • E06B2009/543—Horizontally moving screens
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/32—Articulated members
    • Y10T403/32254—Lockable at fixed position
    • Y10T403/32426—Plural distinct positions
    • Y10T403/32434—Unidirectional movement, e.g., ratchet, etc.

Definitions

  • the present invention is for a locking device for roller mechanism.
  • the locking device is primarily intended to be used with safety gates made from plastics and/or textiles.
  • the function of the locking device is to make unwinding of the material only when the locking device has been released. Winding up of the material is preferably by means of a spring mechanism of the same type as for roller blinds.
  • Safety gates of the kind for which the invention is intended to be used are mainly used as child safety gates to prevent small children to for example get out into staircases.
  • the safety gates ought to be easily opened by a grown up person or an older child but opening shall include acts which a small child is unable to perform.
  • the gate When the gate is closed the material is unwound from the roll which is vertically mounted at one side of the opening and the outer edge of the gate is in a suitable way fixed at the other side of the opening. If the gate is then actuated in some way, for example pressure on the surface of the gate, then the locking device shall prevent further unwinding of material.
  • the procedure when an opening is to be closed using by the gate then is that the locking device first is released, then the gate is pulled out without any return motion and the outer edge is fixed.
  • the gate may be released by external actuation which causes movements that affect control buttons at the locking device to several consecutive movement in different directions.
  • the control buttons are connected to one another so that an outer button surrounds an inner button and the release of the locking device takes place by that both buttons together are pushed in a direction towards the axis of the winding mechanism and the centre of the device whereupon the inner button is pushed don and both buttons then are together pushed away from the centre and released.
  • the buttons have such an outer shape that necklaces, strings, bands and similar things can not be caught by them.
  • the locking device according to the invention and embodiments thereof have the characteristic properties which are mentioned in the claims.
  • Figure 1 shows the outside of the upper section of the housing of a locking device.
  • Figure 2 shows the inside of the upper section of the housing of figure 1.
  • Figure 3 shows the upper section of figure 1 with the pushbutton pushed forward.
  • Figure 4 shows the upper section of figure 2 with the pushbutton pushed forward.
  • Figure 5 shows the inside of the lower section of the housing of the locking device.
  • Figure 6 shows the outside of the lower section of the housing of the locking device.
  • Figure 7 shows the upper section of the locking device with the locking mechanism in a released position.
  • Figure 8 shows the catch of the locking device.
  • Figure 9 shows the driver of the locking device.
  • Figure 10 shows a second view of the driver.
  • Figure 11 shows the cog wheel and its shaft end.
  • Figure 12 shows a mounted safety gate having a locking device according to the invention in principle.
  • the locking device comprises a housing having an upper section 17 and a lower section 3.
  • the safety gate is for example mounted between two gate-posts 27, 28.
  • a mounting tube 29 is mounted to the first gate-post 27 and has at its upper end the housing sections 3, 17 of the locking device and at its lower n a bearing 30 for the tube on to which the gate 26 may be wound up.
  • the gate is shown pulled out to the second gate-post 28 and fixed thereto in a known manner which is not shown in the figure.
  • the material of the safety gate may be wound up on a rod or tube in a way similar to that of a roller blind and having a return spring of the same kind as a roller blind. There is however an essential difference in the function in that, as described above, the safety gate must not be unwound unintentionally but this requires the release of a locking device.
  • the gate is wound up to or unwound from a roller 31 which is mounted to the shaft en 16 of the cog wheel 1 and bears in the lower bearing 30.
  • the cog wheel 1 has a bearing in the upper section 17 of the housing and by means of the shaft end 16 in the hole 15 in the lower section of the housing.
  • the member is rotatably born in bearing means 23 which are arranged for this purpose in the lower section 3 of the housing and corresponding in the upper section of the housing.
  • the catch 4 is forced inwards towards the cog wheel by a spring 8 which forms an integrated part of the member and which is in contact with the bushing 32 in the lower section 3 of the housing.
  • the catch 4 may be kept in a position where the cog wheel is released by means of a driver 2 which is rotatably mounted at a shaft end at the cog wheel so that the driver 2 is positioned between the cog wheel and the upper section 3 of the housing.
  • the driver 2 has a fork which is formed by two shanks or arms, one short arm 11 and one longer arm 12 and between the arms a slot which is delimited by the essentially parallel inner surfaces of the shanks.
  • the shanks are so directed that their inner surfaces and the extensions thereo form an acute angle to a radius through the centre point of the turning of the driver, where the extension of the radius will pass through the outer surface 13 of one of the shanks.
  • the locking device is released and unwinding of the gate 26 is enabled when the pin 6 of the catch is in contact with the outer, flat surface
  • the shanks may be joined together by means of a connecting outer member as shown in figures 9 and 10.
  • the slot of the driver is then L-shaped and the short shank of the slot corresponds to the outer surface of the short shank 11 of the said fork. I a released position the driver rests at one side surface of this short shank of the L-slot.
  • the catch 4 shall be moved away from the cog wheel and the driver 2 shall be displaced so that the catch is in contact with the short arm 11 of the driver.
  • This is achieved by means of an actuating mechanism having press and push buttons, first button 21 and a second button 22, at the top side of the housing.
  • buttons are then together pushed back to the starting position which causes the catch to be displaced to a released position and the pin 6 of the catch then is in contact with the outer end of the short arm 11.
  • the driver 2 is actuated by friction against the cog wheel and the shaft end at which the driver is placed so that the device returns to locked position and the pin 6 at the catch 4 is in the slot between the arms 11 and 12 of the driver.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
  • Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
  • Emergency Lowering Means (AREA)

Abstract

The present invention is for a locking device for a safety gate which comprises a gate surface made from material which may be wound up with a mechanism for prevention of unintentional unwinding of gate material, said mechanism comprising a catch wheel which co-rotates with the unwinding, a rotatable catch for cooperation with the cogs of the catch wheel and a release mechanism for releasing of the gate for unwinding. The mechanism also comprises a driver (2) which is arranged adjacent the catch wheel (1) and may be rotated concentrically therewith at which rotation a pin (6) which is arranged at the catch is displaced in a slot in the driver so that the pin when the catch is in a released position contacts a surface (13) inside or adjacent the slot. The driver comprises a fork with two shanks (11, 12) between which the slot is arranged. The slot is open or L-shaped. In order to release the gate a manually performed movement in three different directions of a means (20, 21, 5) which affects the releasing mechanism is required. The locking mechanism is affected and the release occurs only at the movement in the last of the directions. The actuating means comprises a moveable first button (21) and one therein arranged second button (20) which may be displaced at right angle to the direction of displacement of the first button.

Description

LOCKING DEVICE.
The present invention is for a locking device for roller mechanism. The locking device is primarily intended to be used with safety gates made from plastics and/or textiles. The function of the locking device is to make unwinding of the material only when the locking device has been released. Winding up of the material is preferably by means of a spring mechanism of the same type as for roller blinds.
Safety gates of the kind for which the invention is intended to be used are mainly used as child safety gates to prevent small children to for example get out into staircases. Thus the safety gates ought to be easily opened by a grown up person or an older child but opening shall include acts which a small child is unable to perform. When the gate is closed the material is unwound from the roll which is vertically mounted at one side of the opening and the outer edge of the gate is in a suitable way fixed at the other side of the opening. If the gate is then actuated in some way, for example pressure on the surface of the gate, then the locking device shall prevent further unwinding of material.
The procedure when an opening is to be closed using by the gate then is that the locking device first is released, then the gate is pulled out without any return motion and the outer edge is fixed. The gate may be released by external actuation which causes movements that affect control buttons at the locking device to several consecutive movement in different directions. The control buttons are connected to one another so that an outer button surrounds an inner button and the release of the locking device takes place by that both buttons together are pushed in a direction towards the axis of the winding mechanism and the centre of the device whereupon the inner button is pushed don and both buttons then are together pushed away from the centre and released. The buttons have such an outer shape that necklaces, strings, bands and similar things can not be caught by them.
The locking device according to the invention and embodiments thereof have the characteristic properties which are mentioned in the claims.
The invention will below be described more in detail with reference to the example of an embodiment thereof which is shown in the enclosed figures. Figure 1 shows the outside of the upper section of the housing of a locking device.
Figure 2 shows the inside of the upper section of the housing of figure 1.
Figure 3 shows the upper section of figure 1 with the pushbutton pushed forward.
Figure 4 shows the upper section of figure 2 with the pushbutton pushed forward.
Figure 5 shows the inside of the lower section of the housing of the locking device.
Figure 6 shows the outside of the lower section of the housing of the locking device.
Figure 7 shows the upper section of the locking device with the locking mechanism in a released position.
Figure 8 shows the catch of the locking device.
Figure 9 shows the driver of the locking device.
Figure 10 shows a second view of the driver.
Figure 11 shows the cog wheel and its shaft end.
Figure 12 shows a mounted safety gate having a locking device according to the invention in principle.
The locking device comprises a housing having an upper section 17 and a lower section 3.
The safety gate is for example mounted between two gate-posts 27, 28. A mounting tube 29 is mounted to the first gate-post 27 and has at its upper end the housing sections 3, 17 of the locking device and at its lower n a bearing 30 for the tube on to which the gate 26 may be wound up. In the figure the gate is shown pulled out to the second gate-post 28 and fixed thereto in a known manner which is not shown in the figure.
The material of the safety gate may be wound up on a rod or tube in a way similar to that of a roller blind and having a return spring of the same kind as a roller blind. There is however an essential difference in the function in that, as described above, the safety gate must not be unwound unintentionally but this requires the release of a locking device. In the example which is shown in the figures the gate is wound up to or unwound from a roller 31 which is mounted to the shaft en 16 of the cog wheel 1 and bears in the lower bearing 30. The cog wheel 1 has a bearing in the upper section 17 of the housing and by means of the shaft end 16 in the hole 15 in the lower section of the housing. At unwinding the cog wheel rotates in the direction which is shown by a bent arrow in figure 7. This rotation, and consequently also further unwinding of material, is barred when the catch 4 intersects with the cog wheel. The member is rotatably born in bearing means 23 which are arranged for this purpose in the lower section 3 of the housing and corresponding in the upper section of the housing. The catch 4 is forced inwards towards the cog wheel by a spring 8 which forms an integrated part of the member and which is in contact with the bushing 32 in the lower section 3 of the housing.
The catch 4 may be kept in a position where the cog wheel is released by means of a driver 2 which is rotatably mounted at a shaft end at the cog wheel so that the driver 2 is positioned between the cog wheel and the upper section 3 of the housing. The driver 2 has a fork which is formed by two shanks or arms, one short arm 11 and one longer arm 12 and between the arms a slot which is delimited by the essentially parallel inner surfaces of the shanks. The shanks are so directed that their inner surfaces and the extensions thereo form an acute angle to a radius through the centre point of the turning of the driver, where the extension of the radius will pass through the outer surface 13 of one of the shanks. The locking device is released and unwinding of the gate 26 is enabled when the pin 6 of the catch is in contact with the outer, flat surface
13 of the short arm 11. In other embodiments of the invention the shanks may be joined together by means of a connecting outer member as shown in figures 9 and 10. The slot of the driver is then L-shaped and the short shank of the slot corresponds to the outer surface of the short shank 11 of the said fork. I a released position the driver rests at one side surface of this short shank of the L-slot.
In order to enable unwinding of the gate which is wound up on the roll 31 it is as mentioned above necessary to release the locking device. To achieve this the catch 4 shall be moved away from the cog wheel and the driver 2 shall be displaced so that the catch is in contact with the short arm 11 of the driver. This is achieved by means of an actuating mechanism having press and push buttons, first button 21 and a second button 22, at the top side of the housing. For the release a manually brought about movement of the buttons in three different directions as follows is required. After that the buttons have been pushed (to the right in figure 1) and the button 20 is pressed down then the locking mechanism be affected by the pin 5 at the button 20. The buttons are then together pushed back to the starting position which causes the catch to be displaced to a released position and the pin 6 of the catch then is in contact with the outer end of the short arm 11. As long as unwinding is going on there is no change of the situation of the locking device but as soon as the gate is slightly returned then the driver 2 is actuated by friction against the cog wheel and the shaft end at which the driver is placed so that the device returns to locked position and the pin 6 at the catch 4 is in the slot between the arms 11 and 12 of the driver.

Claims

1. Locking device for a safety gate which comprises a gate surface made from material which may be wound up with a mechanism for prevention of unintentional unwinding of gate material, said mechanism comprising a catch wheel which co-rotates with the unwinding, a rotatable catch for cooperation with the cogs of the catch wheel and a release mechanism for releasing of the gate for unwinding characterized in that the mechanism also includes a driver (2) which is arranged adjacent the catch wheel (1) and may be rotated concentrically therewith at which rotation an pin (6) which is arranged at the catch is displaced in a slot in the driver so that the pin when the catch is a released position contacts a surface (13) inside or adjacent the slot.
2. Device according to claim 1 characterized in that the driver comprises a fork with two shanks (11 , 12) between which the slot is arranged.
3. Device according to claim 1 characterized in that the slot is L-shaped.
4. Device according to any of the preceding claims characterized in that in order to release the gate a manually performed movement in three different directions of a means (20, 21 , 5) which affects the releasing mechanism is required.
5. Device according to claim 4 characterized in that the locking mechanism is affected and the release occurs only at the movement in the last of the directions.
6. Device according to claim 4 or 5 characterized in that the actuating means comprises a moveable first button (21) and one therein arranged second button (20) which may be displaced at right angle to the direction of displacement of the first button.
EP00944473A 2000-05-05 2000-05-05 Locking device Expired - Lifetime EP1278930B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/SE2000/000893 WO2001086104A1 (en) 2000-05-05 2000-05-05 Locking device

Publications (2)

Publication Number Publication Date
EP1278930A1 true EP1278930A1 (en) 2003-01-29
EP1278930B1 EP1278930B1 (en) 2013-03-20

Family

ID=20278852

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00944473A Expired - Lifetime EP1278930B1 (en) 2000-05-05 2000-05-05 Locking device

Country Status (5)

Country Link
US (1) US6907914B1 (en)
EP (1) EP1278930B1 (en)
JP (1) JP4691305B2 (en)
AU (1) AU2000258565A1 (en)
WO (1) WO2001086104A1 (en)

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Publication number Priority date Publication date Assignee Title
SE529698C2 (en) * 2006-03-14 2007-10-30 Joeran Lundh Buckle
US7438112B2 (en) * 2006-11-28 2008-10-21 Shu-Chen Cheng Roll-up barrier
CN102066676B (en) * 2008-07-15 2013-09-25 龙祖仁 Child safety gate
US8757239B2 (en) * 2008-08-26 2014-06-24 Hunter Douglas Inc. Roll-up retractable covering for architectural openings
TWM377970U (en) * 2009-11-17 2010-04-11 Galemed Corp Hanging device and its pivoting mechanism for medical use
US9328551B2 (en) 2013-06-24 2016-05-03 Summer Infant (Usa), Inc. Safety gate assembly
US9482052B2 (en) 2013-08-07 2016-11-01 Summer Infant (Usa), Inc. Safety gate with a rewindable, flexible barrier
CN217538514U (en) * 2022-05-16 2022-10-04 广州市煦雅家居用品有限公司 Automatic locking telescopic protective door sill

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Also Published As

Publication number Publication date
US6907914B1 (en) 2005-06-21
EP1278930B1 (en) 2013-03-20
AU2000258565A1 (en) 2001-11-20
JP2003532817A (en) 2003-11-05
WO2001086104A1 (en) 2001-11-15
JP4691305B2 (en) 2011-06-01

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